Seorang atlet balap sepeda seberat 65N mengayuh sepedanya mengelilingi velodrum berbentuk lingkaran dg radius 20meter, catatan waktu yg dicapai 6 kali putaran dalam waktu 1 menit. tent; a. frekuensi & periode b. kecepatan linier & sudut c. prrcepatan sentripetal d.gaya sentripental. please jwb sih yg bisaa yaaaaaaaaa;( pentinggg!
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Dik : F = 65 N ; R = 20 m ; ω = 6 rpm = 0,2π rad/s dit + jawab : a) f & T = ...?? f = ω/2π = 0,2π/2π = 0,1 Hz T = 1/f = 1/0,1 = 10 s
b) V & ω = ...?? V = ω.R = 0,2π.(20) = 4π m/s ω = 0,2π rad/s
c) as = ...?? as = V^2/R = (4π)^2/20 = 0,8π^2 m/s^2
dit + jawab :
a) f & T = ...??
f = ω/2π = 0,2π/2π = 0,1 Hz
T = 1/f = 1/0,1 = 10 s
b) V & ω = ...??
V = ω.R = 0,2π.(20) = 4π m/s
ω = 0,2π rad/s
c) as = ...??
as = V^2/R = (4π)^2/20 = 0,8π^2 m/s^2
d) Fs = ...??
F = m.as = 6,5 x 0,8π^2 = 5,2π^2 N